20843944

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 43786260

約数和(自身を除く): 22942316

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 121, 122, 242, 244, 353, 484, 488, 671, 706, 968, 1342, 1412, 2684, 2824, 3883, 5368, 7381, 7766, 14762, 15532, 21533, 29524, 31064, 42713, 43066, 59048, 85426, 86132, 170852, 172264, 236863, 341704, 473726, 947452, 1894904, 2605493, 5210986, 10421972, 20843944]

約数ペア:

[(1, 20843944), (2, 10421972), (4, 5210986), (8, 2605493), (11, 1894904), (22, 947452), (44, 473726), (61, 341704), (88, 236863), (121, 172264), (122, 170852), (242, 86132), (244, 85426), (353, 59048), (484, 43066), (488, 42713), (671, 31064), (706, 29524), (968, 21533), (1342, 15532), (1412, 14762), (2684, 7766), (2824, 7381), (3883, 5368)]